Section 24: Home Loan Interest Deduction

Section 24: Home Loan Interest Deduction Guide#

What is Section 24?#

Section 24(b) of the Income Tax Act lets a borrower claim a deduction for interest paid on a home loan, separate from the principal-repayment deduction available under Section 80C. It applies to a loan taken to purchase, construct, repair, renew, or reconstruct a residential property, and the deduction is claimed under the head "Income from House Property."

How much you can claim — and whether there's a cap at all — depends on one thing: is the property self-occupied or let out (rented).

Deduction Limits#

Self-Occupied Property#

• Interest deduction capped at Rs 2,00,000 per year, provided the purchase or construction is completed within 5 years from the end of the financial year in which the loan was taken.
• If construction isn't completed within that 5-year window, the cap drops to Rs 30,000 per year.
• If you own more than one self-occupied property, only one can be treated as self-occupied for this purpose (the rest are deemed let out) — this changed with the introduction of the "two self-occupied properties" concession in recent years, so check which properties you're claiming for.

Let-Out (Rented) Property#

• No upper limit — the entire interest paid during the year is deductible against the rental income.
• If interest exceeds the rental income (after deducting the standard 30% and municipal taxes), the resulting loss from house property can be set off against other income heads, subject to the set-off cap below.

Loss Set-Off Cap#

• A loss from house property (typically arising on a let-out property with high interest) can be set off against other income (like salary) up to Rs 2,00,000 per year.
• Any loss beyond that limit is carried forward for up to 8 assessment years, but can only be set off against house property income in those future years, not against salary or other heads.

Pre-Construction Interest#

Interest paid before the property is ready for possession — during the construction phase — isn't lost. It's aggregated and allowed as a deduction in 5 equal annual instalments, starting from the year construction is completed or possession is taken.

Example: If you paid Rs 1,00,000 in pre-construction interest over two years before possession, you can claim Rs 20,000/year for 5 years after possession — on top of that year's regular interest, subject to the overall Rs 2,00,000 self-occupied cap.

Conditions to Claim the Deduction#

• The property must be in your name (or jointly owned, in which case each co-owner claims their proportionate share, each up to the applicable cap).
• The loan must be from a recognised lender — a bank, housing finance company, or specified financial institution (loans from friends/relatives don't qualify for this specific deduction, though principal repayment rules differ).
• Construction or purchase must actually be completed — no deduction is available purely for an under-construction property in the year(s) before possession (beyond the pre-construction interest carry-forward above).
• You need an interest certificate from your lender each year, breaking out interest paid from principal — this is what you'll use to claim the deduction while filing.

Old vs New Tax Regime#

This is where most people get tripped up:

• Old regime: The Section 24 deduction is available in full, both for self-occupied (up to Rs 2 lakh) and let-out property (uncapped, subject to the Rs 2 lakh loss set-off rule above).
• New regime: The Rs 2 lakh self-occupied deduction is not available. However, for a let-out property, interest can still be deducted against rental income while computing house property income — you just can't use it to generate a loss that offsets your salary income under the new regime.

If you're comparing regimes and have a large self-occupied home loan interest outgo, that alone can be a strong reason to stay on the old regime — run both scenarios through our Income Tax Calculator before deciding.

Worked Example#

Suppose you have a self-occupied home loan with Rs 3,00,000 interest paid in the year, construction completed within 5 years:

For a practical sense of how prepaying part of this loan changes your future interest outgo (and therefore your future Section 24 deduction), see our Home Loan Prepayment Calculator — it shows the interest saved and tenure reduction for a given lump-sum prepayment. If you're still deciding on EMI affordability before taking the loan, our Home Loan Calculator and House Property Income Calculator can help plan both sides.

Common Mistakes to Avoid#

• Claiming pre-construction interest in one shot instead of spreading it over 5 instalments.
• Forgetting the interest certificate — banks issue this annually; without it, claims can be questioned during assessment.
• Assuming let-out property interest is capped — it isn't; only the loss set-off against other income is capped at Rs 2 lakh.
• Double-claiming principal repayment under Section 24 — principal goes under Section 80C, not here; mixing the two up is a frequent filing error.
• Not accounting for co-ownership properly — each co-borrower/co-owner claims their own share of the deduction up to the individual cap; you can't assign the full amount to one person just for convenience.

Key Points to Remember#

• Interest deduction is claimed under "Income from House Property," separate from Section 80C's principal-repayment benefit.
• Self-occupied property: capped at Rs 2 lakh (or Rs 30,000 if construction drags beyond 5 years).
• Let-out property: no cap on the interest deduction itself, but loss set-off against other income is capped at Rs 2 lakh/year, with balance carried forward up to 8 years.
• Not available for self-occupied property under the new tax regime; still usable against rental income for let-out property.
• Sections have been renumbered under the Income Tax Act, 2025 for returns from Tax Year 2026-27 onward — confirm the current section reference with your CA before quoting it in a filing or notice reply, since the underlying provision continues but the number may differ from the 1961 Act's "Section 24."